File Extension LDF

.LDF File

File extension: LDF
File type: Layered Data Format File
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First check your registry for invalid entries.


Notes about the LDF file extension:



Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The LDF file type is primarily associated with 'enotate' by Informal Software, D.I.P., Ischian Systems. Enotate allows you to add hand-written notes to a variety of file formats. LDF was originally used by Informal Software from 1998 onwards for real-time sketching and mark up, using PDAs connected to desktop PCs. It originally stood for LIP Data Format, where LIP stood for Lightweight Informal Protocol. Since then spin-off comapnies DIP and Ischian have extended the file definition to Layered Data Format. It is a real-time data, command, and embedded object definition file, with the concept of embedded overlays of data and other objects.

Detailed information for file extension LDF:


Primary association: enotate
Company: Informal Software, D.I.P., Ischian Systems
File classification: Graphic

Other applications associated with file type LDF:

  • Geoworks (Glue Library Definition)
  • IBM Works for OS/2 (Data Filer Form)
  • LDIF (Script)The LDAP Data Interchange Format (LDIF) is an Internet Engineering Task Force (IETF) standard that defines how to import and export directory data between directory servers that use LDAP service providers. Windows 2000 and Windows Server 2003 include a command-line utility, LDIFDE, which can be used to import directory objects into Active Directory Domain Services using LDIF files. The specification is contained in RFC 2849. Related links: RFC 2849
  • LuraDocument File The Mime types used with this association are: image/x-doc-wavelet. The identifying characters used for this association are - Hex: 49 49 2A 00 08 00 00 00 0E 00 00 01 04 00 01 00 00 00 , ASCII: II Related links: XnView, IrfanView
  • ProWORX Nxt (Logic Data) by Schneider ElectricFound in the NxT directory.
  • SQL Server (Transaction Log File) by Microsoft Corporation The identifying characters used for this association are - Hex: 01 0F 00 00 08 , ASCII:
  • TriboIndenter (Air Indent Electrostatic Force Constant Calibration) by Hysitron IncorporatedUsed by TriboIndenter; a complete automated nanomechanical test system. The file is typically named QUARTZ.LDF or AIRINDENTER.LDF.
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

To view technical data on file-extension LDF click this link to expand/hide the additional area.

System Info for File Extension .LDF

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: ACDSee.LDF, FileType: ACDSee LDF Image, AppName: ACDSee for Windows 95/98/2000/NT

ProgramID: GraphicsConverterPro.ldf, FileType: LuraDocument Format, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: IrfanView.ldf, FileType: IrfanView LDF File, AppName: IrfanView

ProgramID: XnView.Image
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

ProgramID: ACDSee.LDF
EXEFile: %ProgramFiles%\HEWLET~1\PHOTOS~1\ACDSys\ACD\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee.LDF
EXEFile: %ProgramFiles%\ACDSYS~1\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee.LDF
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\ACDSee.exe /dde

ProgramID: IrfanView.ldf
EXEFile: %ProgramFiles%\IrfanView\i_view32.exe

ProgramID: IrfanView.ldf
EXEFile: %ProgramFiles%\IRFANV~1\i_view32.exe


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